Puzzle: Octahedron, Face Cut, Type B, 4th Order
Abbreviation: Octa FB4
Commonly Known As: Nothing (Professor Skewb dual)

Piece Counts

Name	Qty	Colors	Orient.	Perm.	Orbits
Corner	6	3	3, Fixed	Even	None
Edge	24	2	None	Even	None
Corner Face	24	1	None	Even	2
Edge Face	24	1	None	Even	2
Center Face	24	1	None	Even	2
Center	8	1	None	Even	2

Move Types

Type	Layer	Period	Pieces Affected	Total Parity
Face	1	3	1 corner 3-cyc, 2 edge 3-cyc, 1 center 3-cyc, 3 corner face 3-cyc, 2 edge face 3-cyc, 3 center face 3-cyc	Even
Face	2	3	2 edge 3-cyc, 1 corner face 3-cyc, 2 edge face 3-cyc, 1 center face 3-cyc	Even

Suggested Solving Orders

By Piece Type
1. Solve corners and center as on Octa FB2
2. Solved edges
3. Solve corner faces
4. Solve edge faces
5. Solve center faces

Important Issues and Notes
The face pieces are name by which other piece they are adjacent to. The last four steps all use a form of a basic 8-move commutator, and they all all pure sequences, so these steps can be mixed around in any way.

Useful Algorithms
In step 1, three cycle corners (DFN): (R+ U+ R-) D+ (R+ U- R-) D-
In step 1, twist two corners (DFN): (R+ U+ R- U- R+ U+ R-) D+ (R+ U- R- U+ R+ U- R-) D-
In step 2, three cycle edges (DFN): (R+ u+ R-) d+ (R+ u- R-) d-
In step 2, three cycle edges (DFN): (R+ U+ R-) u+ (R+ U- R-) u-
In step 3, three cycle corner faces (DFN): (R+ u+ R-) D+ (R+ u- R-) D-
In step 4, three cycle edge faces (DFN): (r+ d+ r-) D+ (r+ d- r-) D-
In step 5, three cycle center faces (DFN): (F+ u+ F-) U+ (F+ u- F-) U-